Buffing wheel structure



0 t. 23, 1951 H BAHR in AL 2,572,093

BUFFING WHEEL STRUCTURE Q Filed May 5, 1949 INVENTOR.

i atenteci Oct.

BUFFING WHEEL STRUCTURE Henry H. Bahr, New York, and George Becker; Queens Village, N. Y., assignors to Guaranteed Buff 00., Inc., New York, N. Y., a corporation of New York- Application May 5, 1949, Serial No. 91,428

13 Glaims. 1

The present invention is directed to bufiing wheels, more particularly to a type of such wheel which provides for ventilation so as to maintain the buffing surface relatively cool and prevent scorching or deterioration of the fabric.

It, is among the objects of the present invention to provide a buffing wheel Which is relatively simple in construction, which is sturdy, and which has a relatively long life.

It is also among the objects of the present invention to provide a bufing wheel in which there is embedded a flattened cylindrical mass of fabric which is firmly united with a disk-like base and which provides for spaces between the disk and the fabric to afford desirable ventilation for the buffing wheel.

It is further among the objects of the present invention to provide a structure of a buiiing wheel which is particularly simple in the assembly thereof, whereby a minimum amount of skilled cylinder in half so that the final body is doubled up. A ring of metal or other stiff materialis inserted into the fold of the fabric, after whic'h it flattened out so that the fabric is in the transverse plane passing through the ring. Such fiattening results in the formation of the radial U 4 formed in a flange 4 on the disk are in radial pleats, which are relatively close together at the inner periphery of the body and are relatively shallow at the outer periphery thereof. One or more lines of stitching are provided adjacent to the inner periphery and close to the ring in order toretain the pleats and the ring in position.

There is also provided a hub member which is usually in the form of a central disk having means for mounting the same on a shaft for rotation. Along the outer periphery of the disk is a series of openings or of recesses which constitutemeans for anchoring certain connector pieces therein. These connectors, which are preferably of metal, consist essentially of hook-shaped members,

usually having the end of the hook pointed so as to more readily penetrate the fabric, and a base portion which is anchored in the openings or recesses in. the disk.

In theassembly of the buffing wheel, the connector members are first clamped or anchored into the disk-like base in their final positions. The disk is then placed centrally of the fabric body and by means ofa-suitable tool, the hooks are forced through the fabric adjacent to the ring and the ends of the hooks are crimped over part hereof and in which like reference charac-v ters indicate like parts, 6

Fig. 1 is an elevational view of a buffing wheel made in accordance with the present invention;

Fig. 2 is a transverse sectional View thereof taken along the line 2 2 of Fig. 1;

Fig. 3 is a fragmentary View of a cylindrical roll of fabric, showing the ring in place thereon;

Fig. 4 is a view similar to Fig. 3, showing the fabric doubled up with the ring in the fold;

Fig. 5 is a fragmentary perspective view of a base of disk-like form having recesses therein and being a modification of the embodiment shown in Fig. 1;

Fig. 6 is a fragmentary cross-sectional view of the fabric of Fig. 1 with the connector members of Fig. 5 piercing the fabric and anchored thereon;

Fig. '7 is a vertical cross-sectional view of the disk of Fig. 5, with a cover plate in position, and

Fig. 8 is a view similar to Fig. 6, showing a modified form of connector member.

With reference to Figs. 1 to 4, there is provided a disk 1 having an opening 2 for mounting of the disk on the shaft. A series of openings 3 are equally spaced near the periphery of the disk and a corresponding series of recesses or notches alignment with openings 3.

The fabric 5 is a cylindrical roll which is doubled up at 6, forming a series of radial pleats 1. As shown in Fig. 3, a ring 8 is placed around the cylindrical roll, which is then doubled up into the form shown in Fig. 4. After the roll has been flattened into the form shown in Fig. 1', a row of disk at l5 to anchor the connector to the disk,

with the stem Iii positioned in notch 4.

In the manufacture of the buifing wheel, the connectors are first assembled ondisk- I' with pointed ends l3 of the hooks extending substantially at right angles to stems ID. The fabric 5 is first doubled to the position shown in Fig. 4 and stitching 9 provided. Then the disk I with Go connectors attached is co-axially placed over the fabric body and hooks l3 forced through the fabric and bent around on the opposite side, all in a single operation.

. In the embodiment shown in Figs. 5 to '7, there is provided a disk 20, having along its outer periphery a series of recesses, each consisting of a radial recess 2! and a cross recess 22 forming an inverted T, with the end 23 of the recess extending to the periphery of the disk.

Each of the connectors consists of a stem 25 adapted to fit snugly in recess 2| and a head 26 adapted to fit snugly in recess 22. At the outer end it has an offset portion 21, an intermediate hook member 28 and a pointed hook end 29. A boss 31 having a central opening for a shaft is formed on disk and the periphery of said boss is threaded at 32. In order to retain connectors in position in the recesses, a disk 33 threaded at its inner periphery is screwed onto boss 3| to lie flat against disk 20. After the connectors have been assembled on disk 20, hook members 28 are forced through fabric 5, as shown in Fig. 6, and simultaneously end 29 is bent down and around the fabric and ring 20, as shown at 30, to form a substantially closed eye.

An alternate method of assembly of this embodiment resides in first assembling the connectors 25 in proper position with fabric 5, as shown in Fig. 6. Then the assembly may be placed on disk 20 with stem 25 and head 26 of each connector in its proper recess, after which disk 33 is screwed into place. This type of assembly has the advantage that the operator requires but a single base 20 and its accompanying disk 33 for each buff, which may be re-used and as the fabric of one bufling unit wears out, the unit is removed and replaced by a new unit consisting of fabric with attached connectors. This results in additional economy.

In Fig. 8 is shown a further modified form of connector. It is in a form similar to a cotterpin having an annular head 35 and a pair of legs 36 and 31, the head being slipped over ring 8 and legs passing through openings 38 in fabric 5. The extreme ends 39 of the legs are adapted to be inserted in openings 3 and bent over to anchor the same on disk I, or adapted to be fitted into recesses 21 and 22 of disk 20.

Although the invention has been described setting forth several specific embodiments of the invention, such embodiments are intended to illustrate the scope of the invention and not to limit it. Various changes in the details of construction may be made within the principles herein set forth, as for example, the connector members may be of different form than those shown and may be of any suitable form provided they grip both the ring 8 and the disk I or 20, as the case may be. Cover plate 33 may be attached by any suitable mechanical means. Instead of the inverted T-shaped recesses 2l22, other forms such as S- or U-shape, adapted to anchor the connectors, may be used. While metal is preferred for both ring 8 and the connectors, it is possible to utilize some of the tough, resilient, synthetic plastic material for the same purpose. The form, size and character of the disks l and 20 may be different from those shown. In the embodiment of Fig. 7, other means for retaining the connectors may be utilized.

These and other changes in the details of the invention may be made within the spirit thereof and the invention is, therefore, to be broadly construed and not to be limited except by the character of the claims appended hereto.

We 'claim:

l. A buffing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being fiattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft,

- the outer periphery of said disk being spaced from the inner edge of said folded fabric, a series of radially alined independent connector members having the inner end anchored within the body of said disk and extending substantially radially therefrom, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring.

2. A buffing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being fiattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from the inner edge of said folded fabric, a series of radially alined independent connector members having the inner end anchored within the body of said disk and extending substantially radially therefrom, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring to form a substantially closed eye.

3. A bufifing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flattened forming substantially radial pleats, a ring within said fold at said inner periphery, a cen tral disk having means for mounting on a shaft, the outer periphery of said disk being spaced from the inner edge of said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, recesses extending inwardly from the periphery of said disk,the stem of said connectors being nested in said recesses. the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring.

4. A bumng wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from the inner edge of said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, recesses extending inwardly from the periphery of said disk, the stem of said connectors being nested in said recesses, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring, said stems being in a plane passing through said ring. 7

5. A bufling wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flattened forming substantially radial pleats, a ring Within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk-being spaced from the inner edge of said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, openings in said disk, the inner end of said connectors being anchored in said openings, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring.

6. A buffing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, inverted T-shaped radial recesses in the periphery of said disk, the inner end of said connectors being T-shaped and nesting in said recesses, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring.

7. A bufling Wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being fiattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, inverted T-shaped radial recesses in the periphery of said disk, the inner end of said connectors being T-shaped and nesting in said recesses, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring, and a plate secured to a face of said disk to cover said recesses and retain said connectors.

8. A buffing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from the inner edge of said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, radial recesses extending inwardly from the periphery of said disk adapted to provide anchorage for said connectors, the inner end of said connectors being correspondingly L shaped and nesting in said recesses, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring.

9. A buffing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, radial recesses in the periphery of said disk adapted to provide anchorage for said connectors, the inner end of said connectors being correspondingly shaped and nesting in said recesses, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring, and a plate secured to a face of said disk to cover said recesses and retain said connectors.

10. A buffing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flat tened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from the inner edge of said folded fabric, a series of radially alined independent connector members having the inner end enchored within the body of said disk and extending substantially radially therefrom, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring, and a circular line of stitching through said fabric close to and beyond the outer ends of said connectors.

11. A buffing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being fiattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, a flange on the periphery of said disk, recesses in said flange, the stem of said connectors being nested therein, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring.

12. A buffing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from said folded fabric, a series of radially alined independent connector members anchored in said disk and extending substantially radially therefrom, openings in said disk, the inner end of said connectors passing through said openings and bent into hook form to anchor said connectors, the outer end of said connectors piercing said fabric adjacent to said fold and embracing said ring.

. 13. A bufiing wheel comprising an annular body of a fabric folded at its central periphery to form a doubled-up cylinder, said cylinder being flattened forming substantially radial pleats, a ring within said fold at said inner periphery, a central disk having means for mounting on a shaft, the outer periphery of said disk being spaced from said folded fabric, a series of radially aligned independent connector members anchored in said disk and extending substantially radially therefrom, said connectors being in the shape of cotter-pins with the head thereof directly embracing said ring, the outer ends of said connectors passing through said fabric adjacent to said fold.

HENRY H. BAHR.

GEORGE BECKER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,152,180 Jarvis Aug. 31, 1915 2,004,623 Yohe June 11, 1935 2,099,777 Thomas Nov. 23, 1937 2,280,399 Garling Apr. 21, 1943 2,460,588 Leslie Feb. 1, 1949 2,480,409 Glancy Aug. 30, 1949 

